South Dakota · Custer County
Past Producer
Seal Mine
Custer County, South Dakota, United States
Mica
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USGS source ↗
Commodities
Primary
Mica
Commodity type
N
Economic & production
Development status
Past Producer
Identification
Deposit ID
10226046
Region
NA
Data score
D
Coordinates
43.66216, -103.54416
References
USBM STAFF,1955,REG V,IC 7707 P183PAGE,LR,ET AL,1953,USGS PROF PAPER247 PP189-190